RDP maka mgbidi mgbidi putty

Enwere ike ịtụgharịPolymer ntụ ntụ RDP/VAE, bụ ihe pụrụ iche emulsion ịgba ihicha ntụ ntụ mere nke ethylene na vinyl acetate copolymer, n'ihi na nke elu bonding ike na pụrụ iche Njirimara, dị ka: mmiri na-eguzogide, ewu na okpomọkụ mkpuchi, ya mere, nwere nnọọ mbara nso nke ngwa.

kedu ọrụ nke RDPnwere ike igwu egwumgbidi putty?

1, melite adhesion na n'ibu Njirimara nkemgbidi putty. Enwere ike ịtụgharịPolymer ntụ ntụ RDP/VAEna kọntaktị na mmiri nwere ike gbasasịa ngwa ngwa n'ime emulsion, ma nwee otu ihe ahụ dị ka emulsion mbụ, ya bụ, evaporation mmiri nwere ike ịmepụta ihe nkiri, ihe nkiri a nwere mgbanwe dị elu, nkwụsị ihu igwe dị elu na nnukwu adhesion na ihe dị iche iche.

2, melite njikọ nkemgbidi putty, magburu onwe alkali eguzogide, eyi iguzogide, dịkwuo ike flexural.

3, melite mmiri na-eguzogide na permeability nkemgbidi putty.

4, melite mmiri njigide nkemgbidi putty, mụbaa oge mmeghe.

5, melite mmetụta eguzogide ma welie anwụ ngwa ngwa nkemgbidi putty.

In mgbidi puttynwere ikePolima ntụ ntụ na-agbanwe agbanwebụ ihe mgbakwunye dị oke mkpa, n'ozuzu na-ekwu okwu, putty mgbidi dị n'ime nwere ike ịgbakwunye ma ọ bụ. Ma na mpụta mgbidimgbidi puttyga-atụkwasịkwara na mgbasa nkepolymer ntụ ntụ, nwere ike ịbụ na mgbasa nkepolymer ntụ ntụnamgbidi puttynwere ezigbo ike na ike oge, iji gbochie ihe omume nke ntụ ntụ na nsogbu ndị ọzọ.

Ndị ahịa na-ajụkarị ajụjụ gbasaramgbidi putty, dị kamgbidi puttydị mfe iwepụ ntụ ntụ, ntụ ntụ dị njọ, ma ọ bụ ike dị ntakịrị na ihe ndị ọzọ. Ihe niile maaramgbidi puttymkpa ịgbakwunye cellulose ether, ọtụtụ ndị ọrụ adịghị etinye redispersiblepolymer ntụ ntụ. N'ihi na ọ ga-abawanye na-eri nkemgbidi putty, Ya mere, iji chekwaa ego, ọtụtụ ndị ahịa adịghị agbakwunye, nke a mere putty ji dị mfe ntụ ntụ isi nsogbu àgwà!

Celluloseethernwere ike ịmịkọrọ mmiri mgbe mmiri gbasaa ya. Ọrụ bụ isi nke cellulose bụ ijigide mmiri, ma ọ ga-eji nwayọọ nwayọọRDPntụ ntụ mgbe ogologo oge gasịrị. Ụdị putty dị otú a na-atọ ụtọ, ọnụ ọgụgụ ntinye mmiri dị elu, ntụ ntụ dị mfe, enweghị ike, ọ dịghị elasticity. Iji melite putty n'elu nsogbu nwere ike ịgbanwe putty usoro, kwesịrị ekwesị mgbakwunye nke ụfọdụ gbasasịrịpolymer ntụ ntụiji melite ike mbubreyo nkemgbidi putty.

Putty na usoro mmepụta ma ọ bụrụ na ị nwere ike ịgbakwunye zuru ezuRena-achụsasịike polymer ntụ ntụ, ma ọ bụ jiri obere ọkwa putty pụrụ ichepolymer ntụ ntụ, kedu mmetụtaga mgbidi puttynwere ?

mgbidi puttynwere ike napolymer ntụ ntụ RDP/VAE nwere ike agbasaịgbakwunye obere, ndị kasị kpọmkwem arụmọrụ bụ putty oyi akwa rụrụ, n'elu ntụ ọka, ogbenye larịị, o siri ike na-etolite a ok film. Mgbidi a na-enwekarị ike ikpochapụ, ọnya ọnya, ihicha, mgbawa na ihe ndị ọzọ. Ọ bụrụ na ndị dị alamgbidi puttyahọpụtara, mgbidi ahụ ga-emepụta gas na-emerụ ahụ, dị ka formaldehyde na mmebi ahụ mmadụ ndị ọzọ doro anya.

Ya mere, premise nke elu mmamgbidi puttymmepụta bụ ịhọrọ ezigbo hydroxypropyl methyl celluloseHPMCna redispersiblepolymer ntụ ntụ RDPna ihe mgbakwunye ngwaahịa ndị ọzọ iji mepụta ngwaahịa ndụ ndụ.